WO2021082630A1

WO2021082630A1 - Emulsified asphalt, brush-application-type rubber asphalt waterproof paint, and preparation method therefor

Info

Publication number: WO2021082630A1
Application number: PCT/CN2020/108868
Authority: WO
Inventors: 王荣博; 辛海洋; 严从立; 劳振兴; 王志强
Original assignee: 山东北方创信防水科技集团股份有限公司
Priority date: 2019-10-29
Filing date: 2020-08-13
Publication date: 2021-05-06
Also published as: CN110791109A

Abstract

Provided are an emulsified asphalt and a preparation method for the emulsified asphalt; and a brush-application-type rubber asphalt waterproof paint and a preparation method for the brush-application-type rubber asphalt waterproof paint. The emulsified asphalt comprises the following components in percentage by mass: 60%-63% of a petroleum asphalt, 0.3%-2% of a fatty alcohol polyoxyethylene ether sulfate emulsifier, 0.1%-0.5% of a pH value regulator, 0.1%-0.5% of a stabilizer, and deionized water. The emulsified asphalt has a good stability, and is not prone to coagulation when same encounters cations. Rubber latex with a good stability is compounded by the emulsified asphalt, and is not prone to getting bumps when brushing, which not only improves the quality of a waterproof construction, but also improves the aesthetics, and a brushing tool can be directly cleaned with clear water after use, and can be reused, which saves resources and reduces waste.

Description

Emulsified asphalt, brushed rubber asphalt waterproof paint and preparation method thereof

Technical field

The invention relates to the technical field of coatings, in particular to a preparation method of emulsified asphalt, a preparation method of emulsified asphalt, a brushing type rubber asphalt waterproof coating and a brushing type rubber asphalt waterproof coating preparation method.

Background technique

In recent years, spraying quick-setting rubber asphalt waterproof coating has developed rapidly due to its fast construction, full adhesion and good waterproof effect. Spraying quick-setting rubber asphalt waterproof coating is convenient and quick for large-area waterproof construction, but it cannot be used directly. For detailed node treatment and defect repair after waterproof construction, brushed rubber asphalt waterproof coating must be used.

At present, the commonly used brushing rubber asphalt waterproof coating has the same formula composition as spraying quick-setting rubber asphalt waterproof coating. Both are composed of anionic emulsified asphalt, anionic latex, fillers, additives, etc. The difference between the two is that the brushed rubber The bituminous waterproof coating system is more viscous. Among them, anionic emulsified asphalt and anionic latex can quickly condense into a solid state by the action of the coagulant component. The sprayed quick-setting rubber asphalt waterproof coating is based on this principle to quickly set the film, so that it can be quickly constructed without sagging. However, the material is used for However, there are many problems when applying rubber asphalt waterproof coating, and there are the following technical defects:

(1) When dealing with detailed nodes, the positive charge on the cement surface and the coagulant component on the surface of the quick-setting waterproof membrane during defect repair after construction will cause the existing brushed waterproof coatings to quickly condense into lumps. These lumps not only affect the appearance, but also The weak point of waterproofing.

(2) After the conventional brushing type rubber asphalt waterproof coating is painted, the brushing tools cannot be cleaned with clean water. The clean water will destroy the system balance and cause the coating to condense. The condensed rubber bitumen component sticks to the brushing tool, and the more it is washed, the more dirty Therefore, the painting tools of conventional painting type waterproof coatings are basically disposable and difficult to reuse.

Therefore, there is an urgent need to develop a new brushed rubber-asphalt waterproofing coating that has good stability and is not easy to condense in the presence of cations, which can be used in conjunction with sprayed quick-setting rubber-asphalt waterproofing coatings to improve the quality of waterproof construction.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, the purpose of the present invention is to provide an emulsified asphalt, a preparation method of emulsified asphalt, a brush type rubber asphalt waterproof coating and a brush type rubber asphalt waterproof coating preparation method.

In order to achieve the above objective, the technical solution of the first aspect of the present invention provides an emulsified asphalt, which includes the following components in mass percentage: petroleum asphalt 60% to 63%; fatty alcohol polyoxyethylene ether sulfate emulsifier 0.3% ～2%; pH adjuster 0.1%～0.5%; stabilizer 0.1%～0.5%; deionized water.

In this technical scheme, the emulsified asphalt formulated with this component has better stability, and uses fatty alcohol polyoxyethylene ether sulfates as emulsifiers. Fatty alcohol polyoxyethylene ether sulfates contain ethoxy groups and sulfonic acids. The group has both anionic and non-ionic characteristics. It is not easy to condense when encountering cations, which reduces the generation of lumps on the wall after construction and improves the waterproof performance. The emulsified asphalt has good storage stability and no water separation after storage for 6 months. , No precipitation, no condensation when mixed with 10% calcium chloride solution.

It should be noted that petroleum asphalt can be used in combination with one or two of 70# asphalt and 90# asphalt.

In the above technical solution, preferably, the fatty alcohol polyoxyethylene ether sulfate emulsifier includes fatty alcohol polyoxyethylene (2) sodium sulfate, fatty alcohol polyoxyethylene (3) sodium sulfate, fatty alcohol polyoxyethylene ether sulfate Any one or more of ammonium.

In this technical scheme, any one or more of fatty alcohol polyoxyethylene (2) sodium sulfate, fatty alcohol polyoxyethylene (3) sodium sulfate, and fatty alcohol polyoxyethylene ether ammonium sulfate are used as the preparation of emulsified asphalt The emulsifier contains certain ethoxy groups and sulfonic acid groups, so that the prepared emulsified asphalt is not easy to coagulate when encountering cations, which is beneficial to improve the quality of waterproof construction.

In any of the above technical solutions, preferably, the pH adjuster includes sodium hydroxide and/or potassium hydroxide; the stabilizer includes an organic stabilizer, an inorganic stabilizer, and the organic stabilizer is a cellulose ether, including Hydroxymethyl cellulose ether, hydroxyethyl cellulose ether; inorganic stabilizers include sodium bentonite, calcium bentonite, and attapulgite.

More preferably, the stabilizer can be sodium bentonite, which can further improve the stability of the emulsified asphalt.

The technical solution of the second aspect of the present invention provides a method for preparing emulsified asphalt, which includes the following steps: weighing a formula amount of petroleum pitch and heating it to 130°C; weighing a formula amount of fatty alcohol polyoxyethylene ether sulfate Add emulsifiers, pH adjusters, and stabilizers to deionized water, stir evenly until completely dissolved, and preheat to 65°C～70°C to form an emulsifier solution; add the heated petroleum pitch and emulsifier solution to the emulsification at the same time The colloid mill is used for emulsification, down to room temperature, and filtered to obtain emulsified asphalt.

In this technical scheme, the emulsified asphalt prepared in this step has better stability, and uses fatty alcohol polyoxyethylene ether sulfates as emulsifiers. Fatty alcohol polyoxyethylene ether sulfates contain ethoxy groups and sulfonic acid groups. It has both anionic and non-ionic characteristics. It is not easy to condense when encountering cations, which reduces the generation of lumps on the wall after construction and improves the waterproof performance. The emulsified asphalt has good storage stability and does not separate water after storage for 6 months. No precipitation, mixing with 10% calcium ion solution will not cause condensation.

It should be noted that one or two of 70# asphalt and 90# asphalt can be used as petroleum asphalt, and it can be used directly through the colloid mill of the emulsifier during emulsification. The general emulsification time is 5s～90s.

The technical solution of the third aspect of the present invention provides a brushing rubber asphalt waterproof coating, including the following components by mass percentage: the emulsified asphalt in the above technical solution is 50% to 90%; the solid content is 50% to 65% Rubber latex 10% to 50%; filler 5% to 30%; other additives 0.3% to 1.5%; deionized water.

In this technical scheme, the emulsified asphalt in the above technical scheme is used as the raw material for the preparation of the brushed rubber asphalt waterproof coating, which has good stability to cations. The cations here include sodium ions, potassium ions, calcium ions, magnesium ions, etc. , And adding rubber latex, the stability of the rubber latex is good. After the formulated brushed rubber asphalt waterproof coating comes into contact with the cations of the cement base surface and the cations of the coagulant component, it is not easy to form coagulation, which solves the problem of coating to a certain extent. The problem of brush bumps not only improves the quality of waterproof construction, but also looks beautiful.

Moreover, the brush type rubber asphalt waterproof coating has good stability and will not cause condensation when added with clean water. In this way, it can be directly cleaned with clean water after the brushing tools are used up. The brushing work can be reused, saving resources and reducing Waste.

In the above technical solution, preferably, the solid content of the emulsified asphalt is 60% to 63%.

In this technical scheme, the solid content of the emulsified asphalt is 60% to 63%, which further improves the stability of the formulated rubber asphalt waterproof coating.

In any of the above technical solutions, preferably, the rubber latex includes any one or more of natural latex, styrene-butadiene latex, neoprene latex, and acrylate latex; the pH of the rubber latex is 6-8.

In this technical solution, any one or more of natural rubber latex, styrene butadiene latex, neoprene latex, and acrylate latex is used as the rubber latex for preparing the brushed rubber asphalt waterproof coating, and the pH value of the rubber latex is controlled 6 to 8, further improve the stability of the brushed rubber asphalt waterproof coating, and further reduce the occurrence of condensation and lumps after contact with the cations of the cement base surface and the cations in the coagulant component.

In any of the above technical solutions, preferably, the rubber latex is a neutral carboxylic acid modified neoprene latex.

In this technical solution, neutral carboxylic acid-modified neoprene latex is used as the rubber latex for the preparation of the brushed rubber asphalt waterproof coating. While improving the stability of the system, it also improves the adhesion performance of the coating and further improves The quality of brushed rubber asphalt waterproof coating.

In any of the above technical solutions, preferably, the filler includes any one or more of calcium carbonate, talc, and wollastonite; other additives include dispersants, wetting agents, defoamers, and antioxidants , PH adjuster, thickener, dispersant is ammonium salt dispersant, defoamer is silicone defoamer, thickener is polyacrylate thickener.

In this technical scheme, ammonium salt dispersant is selected to improve the water resistance of the system, and silicone defoamer is selected to improve stability while defoaming.

More specifically, the dispersant can be a polyacrylic acid ammonium salt dispersant; the wetting agent can be an alkyl polyoxyethylene ether; the defoaming agent can be a polysiloxane defoaming agent; the antioxidant can be 2,2′ -Methylene bis(4-methyl-6-tert-butylphenol); pH adjuster can be 2-amino-2-methyl-1-propanol; thickener can be polyacrylate alkali swelling and thickening Agent.

The technical solution of the fourth aspect of the present invention provides a method for preparing a brushed rubber asphalt waterproof coating, which includes the following steps: weighing a formula amount of fillers and other additives into deionized water at a rate of 1500r/min～2500r/min Disperse and grind at high speed to obtain filler slurry; weigh the formulated amount of emulsified asphalt and rubber latex and mix them evenly at a low speed of 500r/min～800r/min; during the mixing process of emulsified asphalt and rubber latex, slowly add filler slurry to emulsified asphalt and rubber The latex is formed into a mixture, and the viscosity is adjusted to 3000 centipoise to 7000 centipoise, and filtered to obtain a brushed rubber asphalt waterproof coating.

In this technical solution, the brushed rubber asphalt waterproof coating prepared in this step has good stability to cations, where the cations include sodium ions, potassium ions, calcium ions, magnesium ions, etc., and rubber latex, rubber latex The stability of the rubber asphalt waterproof coating is good. After the formulated brushing rubber asphalt waterproof coating is in contact with the cations of the cement base surface and the cations of the coagulant component, it is not easy to condense, which solves the problem of brushing to a certain extent, and improves Improve the quality of waterproof construction, and beautiful.

Through the above technical solutions, fatty alcohol polyoxyethylene ether sulfates are used as emulsifiers to prepare emulsified asphalt with better stability. The emulsifier contains ethoxy and sulfonic acid groups, as well as anionic and nonionic groups. Characteristic, when it encounters cations, such as calcium ions, it is not easy to coagulate. The rubber latex with better stability is compounded from the emulsified asphalt, and then fillers and other additives are added to make a paint-based rubber asphalt waterproof coating with better stability. , The coating is not easy to condense when exposed to cations, and it is not easy to get bumps when brushing, which not only improves the quality of waterproof construction, but also improves the aesthetics. In addition, the coating will not condense when exposed to clear water. When using this coating, the brushing tools are used up Afterwards, it can be cleaned directly with clean water, which can be reused, saving resources and reducing waste.

The additional aspects and advantages of the present invention will be given in the following description, and some will become obvious from the following description, or be understood through the practice of the present invention.

Detailed ways

The invention discloses a preparation method of emulsified asphalt, a preparation method of emulsified asphalt, a painting type rubber asphalt waterproof coating and a painting type rubber asphalt waterproof coating preparation method. Those skilled in the art can learn from the content of this article and appropriately Improve the realization of process parameters. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all deemed to be included in the present invention. The method and application of the present invention have been described through the preferred embodiments. It is obvious that relevant persons can make changes or appropriate changes and combinations to the methods and applications described herein without departing from the content, spirit and scope of the present invention to achieve and Apply the technology of the present invention.

The following examples further illustrate the present invention:

Example 1

Emulsified asphalt components: 70# petroleum asphalt 62kg, alkyl alcohol polyoxyethylene ammonium sulfate 1.5kg, sodium hydroxide 0.15kg, hydroxymethyl fiber 0.5kg, deionized water 35.85kg.

Preparation process of emulsified asphalt: Weigh the formulated amount of petroleum asphalt and heat it to 130°C;

Prepare emulsifier solution, add formula amount of alkyl alcohol polyoxyethylene (3) ammonium sulfate, sodium hydroxide, and methylol fiber to formula amount of deionized water, stir evenly until completely dissolved, and preheat to 65℃～ 70°C;

The heated petroleum asphalt and the emulsifier solution are simultaneously added to the colloid mill of the emulsifier for emulsification, then are cooled to room temperature, and filtered to obtain the emulsified asphalt.

The components of the brushed rubber asphalt waterproof coating: 62kg of the above-mentioned emulsified asphalt, 28kg of neutral carboxylic acid modified neoprene latex, 6.5kg of filler, 0.5kg of other additives, and 3.15kg of deionized water.

Specifically, the other additives include dispersant 0.1Kg, wetting agent 0.05Kg, defoamer 0.04Kg, antioxidant 0.08Kg, pH regulator 0.03Kg, thickener 0.05Kg,

The preparation process of brushed rubber asphalt waterproof coating:

Weigh the fillers and other additives of the formula and add them to deionized water at a high speed of 1500r/min～2500r/min to disperse and grind to obtain a filler slurry;

Weigh the formulated amount of emulsified asphalt and rubber latex and mix them evenly at a low speed of 500r/min～800r/min;

In the mixing process of emulsified asphalt and rubber latex, the filler slurry is slowly added to the emulsified asphalt and rubber latex to form a mixture, and the viscosity is adjusted to 3000 cps to 7000 cps, and the brushed rubber asphalt waterproof coating is obtained by filtering.

The conventional anionic emulsified asphalt (a), the conventional brushed rubber bitumen waterproof coating (b), the above-mentioned emulsified bitumen (c) proposed in this application, and the above-mentioned brushed rubber bitumen waterproof coating (d) proposed in this application are added to clean water respectively. , Different content of calcium chloride solution, sodium chloride solution, potassium chloride solution, magnesium chloride solution, get the following test results in Table 1.

Table 1

To	(a)(a)	(b)(b)	(c)(c)	(d)(d)
清水Shimizu	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含10％钙离子溶液Containing 10% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含15％钙离子溶液Contains 15% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含20％钙离子溶液Containing 20% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation
含25％钠离子溶液Containing 25% sodium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含25％钾离子溶液Containing 25% potassium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含10％镁离子溶液Contains 10% magnesium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含20％镁离子溶液Containing 20% magnesium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation

The use process of the above-mentioned brushed rubber asphalt waterproof coating:

Detailed structure treatment: According to the construction requirements, the brushed rubber asphalt waterproof coating is directly applied to the detailed structure. Since the emulsified asphalt and latex in the system are relatively stable, it will not condense and cause lumps when it encounters a positively charged cement base surface. After brushing, the brushing tools can be cleaned with clean water directly.

Defect repair after spraying quick-setting rubber asphalt waterproof coating on large surface: clean up the defect and smooth it, and then directly apply the stable rubber asphalt waterproof coating to the defect, as the coagulant on the surface of the quick-setting layer It will not cause the coating to condense, the painted surface is smooth and free of lumps, and the quality of waterproof construction is more guaranteed. The painting tools are washed with water and reused.

Example 2

The components of emulsified asphalt: 70# petroleum pitch 30kg, 90# petroleum pitch 30kg, alkyl alcohol polyoxyethylene (3) sodium sulfate 0.5kg, alkyl alcohol polyoxyethylene (2) sodium sulfate 0.5kg, sodium hydroxide 0.20 kg, 0.5 kg of hydroxyethyl fiber, 38.3 kg of deionized water.

Refer to Example 1 for the preparation process of emulsified asphalt, which will not be repeated here.

The components of the brushed rubber asphalt waterproof coating: 60kg of the above emulsified asphalt, 23kg of neutral carboxylic acid modified neoprene latex, 7kg of styrene butadiene latex, 6.5kg of filler, 0.5kg of other additives, and 3.15kg of deionized water.

Specifically, the other additives include dispersant 0.1Kg, wetting agent 0.05Kg, defoamer 0.04Kg, antioxidant 0.08Kg, pH regulator 0.03Kg, thickener 0.05Kg.

Refer to Example 1 for the preparation process of the brush type rubber asphalt waterproof coating, which will not be repeated here.

The conventional anionic emulsified asphalt (a), the conventional brushed rubber bitumen waterproof coating (b), the above-mentioned emulsified bitumen (c) proposed in this application, and the above-mentioned brushed rubber bitumen waterproof coating (d) proposed in this application are added to clean water respectively. , Different content of calcium chloride solution, sodium chloride solution, potassium chloride solution, magnesium chloride solution, get the following test results in Table 2.

Table 2

Example 3

The components of emulsified asphalt: 70# petroleum pitch 50kg, 90# petroleum pitch 13kg, alkyl alcohol polyoxyethylene (3) sodium sulfate 2.0kg, sodium hydroxide 0.15kg, sodium bentonite 0.5kg, and deionized water 36.35kg.

The components of the brushed rubber asphalt waterproof coating: 50kg of the above emulsified asphalt, 25kg of neutral carboxylic acid modified neoprene latex, 5kg of natural rubber latex, 13kg of filler, 0.5kg of other additives, and 6.3kg of deionized water.

Specifically, the other additives include dispersant 0.2Kg, wetting agent 0.1Kg, defoamer 0.08Kg, antioxidant 0.16Kg, pH regulator 0.06Kg, thickener 0.1Kg.

The conventional anionic emulsified asphalt (a), the conventional brushed rubber bitumen waterproof coating (b), the above-mentioned emulsified bitumen (c) proposed in this application, and the above-mentioned brushed rubber bitumen waterproof coating (d) proposed in this application were added to clean water. , Different content of calcium chloride solution, sodium chloride solution, potassium chloride solution, magnesium chloride solution, get the following test results in Table 3.

table 3

Example 4

The components of emulsified asphalt: 70# petroleum pitch 45kg, 90# petroleum pitch 15kg, alkyl alcohol polyoxyethylene (2) sodium sulfate 1.5kg, sodium hydroxide 0.20kg, hydroxyethyl fiber 0.5kg, deionized water 37.8kg .

The components of the brushed rubber asphalt waterproof coating: 80kg of the above-mentioned emulsified asphalt, 7kg of neutral carboxylic acid modified neoprene latex, 3kg of acrylate latex, 6.5kg of filler, 0.5kg of other additives, and 3.15kg of deionized water.

The conventional anionic emulsified asphalt (a), the conventional brushed rubber bitumen waterproof coating (b), the above-mentioned emulsified bitumen (c) proposed in this application, and the above-mentioned brushed rubber bitumen waterproof coating (d) proposed in this application were added to clean water. , Different content of calcium chloride solution, sodium chloride solution, potassium chloride solution, magnesium chloride solution, get the following test results in Table 4.

Table 4

To	(a)(a)	(b)(b)	(c)(c)	(d)(d)
清水Shimizu	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含10％钙离子溶液Containing 10% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含15％钙离子溶液Contains 15% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含20％钙离子溶液Containing 20% calcium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation

含25％钠离子溶液Containing 25% sodium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含25％钾离子溶液Containing 25% potassium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含10％镁离子溶液Contains 10% magnesium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	无沉淀产生No precipitation	无沉淀产生No precipitation
含20％镁离子溶液Containing 20% magnesium ion solution	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation	有沉淀产生Precipitation

Example 5

The components of emulsified asphalt: 70# petroleum asphalt 60kg, alkyl alcohol polyoxyethylene (2) sodium sulfate 0.3kg, alkyl alcohol polyoxyethylene ammonium sulfate 0.2kg, potassium hydroxide 0.20kg, sodium bentonite 0.5kg, to remove Ionized water 37.8kg.

The components of the brushed rubber asphalt waterproof coating: 45kg of the above-mentioned emulsified asphalt, 45kg of neutral carboxylic acid modified neoprene latex, 6.5kg of filler, 0.5kg of other additives, and 3.15kg of deionized water.

Specifically, other additives include dispersant 0.1Kg, wetting agent 0.05Kg, defoamer 0.04Kg, antioxidant 0.08Kg, pH regulator 0.03Kg, thickener 0.05Kg.

The conventional anionic emulsified asphalt (a), the conventional brushed rubber bitumen waterproof coating (b), the above-mentioned emulsified bitumen (c) proposed in this application, and the above-mentioned brushed rubber bitumen waterproof coating (d) proposed in this application were added to clean water. , Different content of calcium chloride solution, sodium chloride solution, potassium chloride solution, magnesium chloride solution, get the following test results in Table 5.

table 5

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims

An emulsified asphalt, which is characterized in that it comprises the following components by mass percentage:

Petroleum asphalt 60% to 63%; fatty alcohol polyoxyethylene ether sulfate emulsifier 0.3% to 2%; pH adjuster 0.1% to 0.5%; stabilizer 0.1% to 0.5%; deionized water.
The emulsified asphalt according to claim 1, characterized in that:

The fatty alcohol polyoxyethylene ether sulfate emulsifier includes any one of fatty alcohol polyoxyethylene (2) sodium sulfate, fatty alcohol polyoxyethylene (3) sodium sulfate, fatty alcohol polyoxyethylene ether ammonium sulfate, or Several kinds.
The emulsified asphalt according to claim 2, characterized in that:

The pH adjusting agent includes sodium hydroxide and/or potassium hydroxide;

The stabilizers include organic stabilizers and inorganic stabilizers,

The organic stabilizer is cellulose ether, including hydroxymethyl cellulose ether and hydroxyethyl cellulose ether;

The inorganic stabilizers include sodium bentonite, calcium bentonite, and attapulgite.
A method for preparing emulsified asphalt according to any one of claims 1 to 3, characterized in that it comprises the following steps:

Weigh the formulated amount of petroleum pitch and heat it to 130°C;

Weigh the formulated amount of fatty alcohol polyoxyethylene ether sulfate emulsifier, pH value adjuster, and stabilizer into deionized water, stir evenly until completely dissolved, and preheat to 65℃～70℃ to form an emulsifier solution;

The heated petroleum asphalt and the emulsifier solution are simultaneously added to the colloid mill of an emulsifier to be emulsified, and then lowered to room temperature, and filtered to obtain the emulsified asphalt.
A brush type rubber asphalt waterproof coating, which is characterized in that it comprises the following components by mass percentage:

The emulsified asphalt of any one of claims 1 to 3 is 50% to 90%; rubber latex with a solid content of 50% to 65%; 10% to 50%; filler 5% to 30%; other additives 0.3% to 1.5% ;Deionized water.
The brush type rubber asphalt waterproof coating according to claim 5, characterized in that:

The solid content of the emulsified asphalt is 60% to 63%.
The brush type rubber asphalt waterproof coating according to claim 6, characterized in that:

The rubber latex includes any one or more of natural latex, styrene butadiene latex, neoprene latex, and acrylic latex;

The pH of the rubber latex is 6-8.
The brush type rubber asphalt waterproof coating according to claim 7, characterized in that:

The rubber latex is a neutral carboxylic acid modified neoprene latex.
The brush type rubber asphalt waterproof coating according to claim 8, characterized in that:

The filler includes any one or more of calcium carbonate, talc, and wollastonite;

The other auxiliary agents include dispersants, wetting agents, defoamers, antioxidants, pH regulators, thickeners, the dispersants are ammonium salt dispersants, and the defoamers are silicone defoamers , The thickener is an acrylic thickener.
A method for preparing a brushed rubber asphalt waterproof coating according to any one of claims 5 to 9, characterized in that it comprises the following steps:

Weigh the fillers and other additives of the formula and add them to deionized water at a high speed of 1500r/min～2500r/min to disperse and grind to obtain a filler slurry;

Weigh the formulated amount of emulsified asphalt and rubber latex and mix them evenly at a low speed of 500r/min～800r/min;

During the mixing process of the emulsified asphalt and the rubber latex, the filler slurry is slowly added to the mixture of the emulsified asphalt and the rubber latex, and the viscosity is adjusted to 3000 cps to 7000 cps, and the resultant is obtained by filtration. The brush type rubber asphalt waterproof coating.